BBB Skyscaper BSP-20 Seatpost 2973630254

Extend your seatpost as far as you want, an almost endless extention. A seatpost with a super easy to use saddle attachement system. Another great feature of the SkyScraper is the many different sizes it is available. 30 sizes to make sure we got a seatpost for every bike. The possibilities are sky high! Like a skyscraper!System:- 2-screw Micro-adj... moreust system.Features:- Compatible with all bikes- Cold-forged 6061 T6 aluminium- 2-screw Micro-adjust system- Extra long seatpost (400mm)Specifications:- Sizes: 25.0mm, 25.4mm, 25.6mm, 25.8mm, 26.0mm, 26.2mm, 26.4mm, 26.6mm, 26.8mm, 27.0mm, 27.2mm, 28.6mm, 28.8mm, 29.0mm, 29.2mm, 29.4mm, 29.6mm, 29.8mm, 30.0mm, 30.2mm, 30.4mm, 30.6mm, 30.8mm, 30.9mm, 31.0mm, 31.2mm, 31.4mm, 31.6mm, 32.0mm, 34.9mm- Carbon rails compatible: Yes- Clamp mechanism: Dual bolt- Seatpost material: 6061 T6 Aluminum- Length (mm): 400- Usage: City bike, E-bike, MTB, Road bike, Touring- Diameter: 25, 25.4, 25.6, 25.8, 26, 26.2, 26.4, 26.6, 26.8, 27, 27.2, 28.6, 28.8, 29, 29.2, 29.4, 29.6, 29.8, 30, 30.2, 30.4, 30.6, 30.8, 30.9, 31, 31.2, 31.4, 31.6, 32, 34.9